Prof. Dr. rer. nat. Oliver Benson
Profil
Forschungsthemen41
Active Plasmonic Nano-Antennas for Generating, Detecting, and Converting Quantum Light (ActiPlAnt)
Quelle ↗Förderer: Einstein Stiftung Berlin Zeitraum: 07/2014 - 06/2017 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
Cavity QED with Defect Centers and a Micro-toroidal Cavity
Quelle ↗Förderer: DFG Sachbeihilfe Zeitraum: 01/2008 - 12/2011 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
Controlled coupling of nanoscopic light emitters with high-Q modes of a toroidal microcavity: studies of cavity QED and nano-optical effects in a novel model system
Quelle ↗Förderer: Alexander von Humboldt-Stiftung Zeitraum: 03/2006 - 08/2010 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
DFG-Sachbeihilfe: Three-Dimensional Quantum Photonic Elements Based on Single Emitters in Laserwritten Microstructures for Efficient Non-Classical Light Generation and Ultra-Sensitive Optical Nanomagnetometry
Quelle ↗Förderer: DFG Sachbeihilfe Zeitraum: 03/2014 - 08/2017 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
Experimental Quantum Optics with Photonic Crystals: Nanoscopic Emitters as Probes in a Structured Dielectric Environment
Quelle ↗Förderer: DFG Sachbeihilfe Zeitraum: 04/2003 - 01/2005 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
FOR 1493/2: Integrated Quantum Optics and Nanophotonics with Defect Centers in Nanodiamonds
Quelle ↗Förderer: DFG Forschungsgruppe Zeitraum: 12/2014 - 11/2017 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
FOR 1493: Integrated Quantum Optics and Nanophotonics with Defect Centers in Nanodiamonds (TP 6)
Quelle ↗Förderer: DFG Forschungsgruppe Zeitraum: 05/2011 - 05/2014 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
Herstellung und Charakterisierung optischer Resonatorstrukturen auf der Basis photonischer Kristalle (OPHRES)
Quelle ↗Zeitraum: 06/2006 - 09/2007 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
IBB - Advanced Micro-Resonators (AdMiRe)
Quelle ↗Förderer: Land Berlin - Andere Zeitraum: 01/2010 - 09/2013 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
INSPIRE Fellowship
Quelle ↗Zeitraum: 09/2010 - 02/2012 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
Integrierte Mikroresonator-stabilisierte Lichtquellen für die (Quanten-)Metrologie (iMiLQ)
Quelle ↗Förderer: Land Berlin - Andere Zeitraum: 07/2015 - 06/2018 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
International Workshop on Fundamentals of Light-Matter-Interaction (Veranstaltung: 20.10.- 22.10.08, Brasillien))
Quelle ↗Förderer: DFG sonstige Programme Zeitraum: 07/2008 - 12/2008 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
Int. Workshop on Fundamentals of Light-Matter-Interaction
Quelle ↗Förderer: Bundesministerium für Forschung, Technologie und Raumfahrt Zeitraum: 09/2010 - 06/2011 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
KEPHOSI Kompakte Einzelphoton-Normlichtquelle basierend auf Defektzentren in Diamant
Quelle ↗Förderer: Bundesministerium für Forschung, Technologie und Raumfahrt Zeitraum: 11/2008 - 10/2011 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
Mikrowellenassistierter Einzelphotonen-Quantenspeicher (MASQ)
Quelle ↗Förderer: Horizon Europe: Postdoctoral Fellowship EU (PF-EU) Zeitraum: 07/2026 - 06/2028 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
Neuartige hybride Materialien für Quantenoptikanwendungen
Quelle ↗Förderer: Andere inländische Stiftungen Zeitraum: 01/2015 - 12/2020 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
Numerische Parameterquantifizierung und Optimierung von neuen Konzepten für die Quanteninformationsübertragung
Quelle ↗Zeitraum: 06/2017 - 12/2017 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
Optische Quantenschnittstellen zwischen Quantenpunkten und Atomen (QcomHHUB)
Quelle ↗Förderer: Bundesministerium für Forschung, Technologie und Raumfahrt Zeitraum: 05/2014 - 10/2018 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
Photonische Kristallfasern: Untersuchung der Wechselwirkung von Licht mit einzelnen Emittern in nanostrukturiertem Glas
Quelle ↗Zeitraum: 03/2005 - 09/2007 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
Photonische Nano-Filme mit umfassender optischer Funktionalität
Quelle ↗Förderer: Bundesministerium für Forschung, Technologie und Raumfahrt Zeitraum: 10/2016 - 06/2020 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
QK_QuaHL-Rep (Quanten-Repeater-Plattformen auf Basis von Halbleitern) - Teilprojekt: Konversion einzelner und verschränkter Photonenpaare
Quelle ↗Förderer: Bundesministerium für Forschung, Technologie und Raumfahrt Zeitraum: 11/2010 - 10/2013 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
QUIN: Quanten-OCT keramischer und polymerer Werkstoffe mit verschränkten Photonen im mittleren Infrarot
Quelle ↗Förderer: Bundesministerium für Forschung, Technologie und Raumfahrt Zeitraum: 05/2021 - 04/2025 Projektleitung: Dr. Sven Ramelow, Prof. Dr. rer. nat. Oliver Benson
Realisierung höchsteffizienter Einzelphotonquellen mittels nanophotonischer Elemente und Nanomanipulationstechnologien
Quelle ↗Förderer: DAAD Zeitraum: 01/2014 - 12/2015 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
SFB 296 IV: Kohärenz, Effizienz und Quantenkorr. einzelner Quantenpunkte (Teilprojekt B 15)
Quelle ↗Förderer: DFG Sonderforschungsbereich Zeitraum: 04/2004 - 12/2006 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
SFB 448 IV: Light Harvesting in künstlichen hybriden Strukturen (Teilprojekt C 8)
Quelle ↗Förderer: DFG Sonderforschungsbereich Zeitraum: 01/2007 - 12/2009 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
SFB 787/1: Einzelne Photonen für die Quanteninformationsverarbeitung (TP C02)
Quelle ↗Förderer: DFG Sonderforschungsbereich Zeitraum: 01/2008 - 12/2019 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
SFB 787/3: Quantennetzwerke basierend auf Einzelphotonen (TP C02)
Quelle ↗Förderer: DFG Sonderforschungsbereich Zeitraum: 01/2016 - 12/2019 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
SFB 951/1: HIOS - Coherent amplification and lasing of metal/organic hybrid structures (TP B 2)
Quelle ↗Förderer: DFG Sonderforschungsbereich Zeitraum: 07/2011 - 06/2015 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
SFB 951/1: HIOS - Plasmonic nanoantennae as efficient input/output ports for fundamental opto-electronic elements based on inorganic/organic interfaces (TP B 1)
Quelle ↗409-01 · Theoretische InformatikFörderer: DFG Sonderforschungsbereich Zeitraum: 07/2011 - 06/2015 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
SFB 951/2: HIOS – Coherent Amplification and Lasing of Metal/Organic Hybrid Structures (TP B02)
Quelle ↗Förderer: DFG Sonderforschungsbereich Zeitraum: 07/2015 - 06/2019 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
SFB 951/2: HIOS – ZnO/organische Hybridstrukturen (TP A05)
Quelle ↗Förderer: DFG Sonderforschungsbereich Zeitraum: 07/2015 - 06/2019 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
SFB 951/3: Chirale Kopplung in hybriden plasmonischen Nanostrukturen (TP B02)
Quelle ↗Förderer: DFG Sonderforschungsbereich Zeitraum: 07/2019 - 06/2023 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
SFB 951/3: Plasmonische Tunnelkontakte zur Erzeugung und Detektion von Infrarot-Photonen (TP B18)
Quelle ↗Förderer: DFG Sonderforschungsbereich Zeitraum: 07/2019 - 06/2023 Projektleitung: Dr. Günter Kewes, Prof. Dr. rer. nat. Oliver Benson
Storage of Single Photons in Atomic Vapor I
Quelle ↗Förderer: DFG Sachbeihilfe Zeitraum: 07/2005 - 06/2007 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
Storage of Single Photons in Atomic Vapor II
Quelle ↗Förderer: DFG Sachbeihilfe Zeitraum: 09/2007 - 08/2008 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
Tailored Light-Matter Coupling with Photonic Crystal Cavities in the Visible
Quelle ↗Förderer: DFG Sachbeihilfe Zeitraum: 12/2008 - 11/2011 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
Technologien und Demonstratoren für Quantenrepeater, TD.QR, Teilprojekt: 3-Knoten-Verschränkung von Quanten- speichern über eine 52km Telekomfaserverbindung
Quelle ↗Förderer: Bundesministerium für Forschung, Technologie und Raumfahrt Zeitraum: 01/2026 - 03/2027 Projektleitung: Prof. Dr. rer. nat. Oliver Benson, Prof. Dr. Tim Schröder, Dr. Sven Ramelow
Technologien und Demonstratoren für Quantenrepeater, TD.QR, Teilprojekt: 3-Knoten-Verschränkung von Quanten- speichern über eine 52km Telekomfaserverbindung
Quelle ↗Förderer: Bundesministerium für Forschung, Technologie und Raumfahrt Zeitraum: 01/2026 - 03/2027 Projektleitung: Dr. Sven Ramelow, Prof. Dr. Tim Schröder, Prof. Dr. rer. nat. Oliver Benson
Technologien und Demonstratoren für Quantenrepeater, TD.QR, Teilprojekt: 3-Knoten-Verschränkung von Quanten- speichern über eine 52km Telekomfaserverbindung
Quelle ↗Förderer: Bundesministerium für Forschung, Technologie und Raumfahrt Zeitraum: 01/2026 - 03/2027 Projektleitung: Prof. Dr. Tim Schröder, Dr. Sven Ramelow, Prof. Dr. rer. nat. Oliver Benson
Transfer von Spin-Photon-Verschränkung Unterprojekt 1: Neue QKD-Protokolle und Tests Quanten-Faserstrecken
Quelle ↗Förderer: Bundesministerium für Forschung, Technologie und Raumfahrt Zeitraum: 08/2018 - 07/2021 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
Verbundprojekt: Photonische Quantencomputer (PhoQuant) - Teilvorhaben: Erzeugung nicht-Gaußscher Quantenzustände für Photonisches Quantencomputing
Quelle ↗Förderer: Bundesministerium für Forschung, Technologie und Raumfahrt Zeitraum: 01/2022 - 12/2026 Projektleitung: Prof. Dr. rer. nat. Oliver Benson
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Publikationen25
Top 25 nach Zitationen — Quelle: OpenAlex (BAAI/bge-m3 embedded für Matching).
Physical Review Letters · 988 Zitationen · DOI
We propose a new method of generating nonclassical optical field states. The method uses a semiconductor device, which consists of a single quantum dot as active medium embedded in a p- i- n junction and surrounded by a microcavity. Resonant tunneling of electrons and holes into the quantum dot ground states, together with the Pauli exclusion principle, produce regulated single photons or regulated pairs of photons. We propose that this device also has the unique potential to generate pairs of entangled photons at a well-defined repetition rate.
Nature Photonics · 772 Zitationen · DOI
The Journal of Physical Chemistry B · 740 Zitationen · DOI
We report the synthesis and characterization of highly luminescent colloidal nanocrystals consisting of CdSe cores protected with double inorganic shells (core−shell−shell nanocrystals). The outer ZnS shell provides efficient confinement of electron and hole wave functions inside the nanocrystal as well as high photochemical stability. Introducing the middle shell (CdS or ZnSe) sandwiched between CdSe core and ZnS outer shell allows considerable reducing strain inside nanocrystals because CdS and ZnSe have the lattice parameter intermediate to those of CdSe and ZnS. In contrast to CdSe/ZnS core−shells, in the core−shell−shell nanocrystals ZnS shell grows nearly defect free. Due to high quality of the ZnS shell, the core−shell−shell nanocrystals exhibit PL efficiency and photostability exceeding those of CdSe/ZnS nanocrystals. Preferential growth of the middle CdS shell in one crystallographic direction allows engineering the shape and luminescence polarization of the core−shell−shell nanocrystals.
Physical Review Letters · 634 Zitationen · DOI
We have reconstructed the quantum state of optical pulses containing single photons using the method of phase-randomized pulsed optical homodyne tomography. The single-photon Fock state 1> was prepared using conditional measurements on photon pairs born in the process of parametric down-conversion. A probability distribution of the phase-averaged electric field amplitudes with a strongly non-Gaussian shape is obtained with the total detection efficiency of (55+/-1)%. The angle-averaged Wigner function reconstructed from this distribution shows a strong dip reaching classically impossible negative values around the origin of the phase space.
Nano Letters · 613 Zitationen · DOI
We demonstrate that efficient shape control may be achieved in the shell of colloidally grown semiconductor nanocrystals (independent of the core), allowing the combination of a 0-D spherical CdSe core with a 1-D rodlike CdS shell. Besides exhibiting linearly polarized emission with a room-temperature quantum efficiency above 70%, these mixed-dimensionality colloidal heterostructures display large, length-dependent Stokes shifts as well as giant extinction coefficients approaching 107cm-1 M-1.
Nature · 475 Zitationen · DOI
Nano Letters · 461 Zitationen · DOI
In this Letter we report the plasmon-enhanced upconversion in single NaYF(4) nanocrystals codoped with Yb(3+)/Er(3+). Single nanocrystals and gold nanospheres are investigated and assembled in a combined confocal and atomic force microscope setup. The nanocrystals show strong upconversion emission in the green and red under excitation with a continuous wave laser in the near-infrared at 973 nm. By the use of the atomic force microscope, we couple single nanocrystals with gold spheres (30 and 60 nm in diameter) to obtain enhanced upconversion emission. An overall enhancement factor of 3.8 is reached. A comparison of time-resolved measurements on the bare nanocrystal and the coupled nanocrystal-gold sphere systems unveil that faster excitation as well as faster emission occurs in the nanocrystals.
Nano Letters · 392 Zitationen · DOI
In this Letter we present the controlled coupling of a single nitrogen vacancy center to a plasmonic structure. With the help of an atomic force microscope, a single nanodiamond containing a single nitrogen vacancy center and two gold nanospheres are assembled step-by-step. We show that both the excitation rate and the radiative decay rate of the color center are enhanced by about 1 order of magnitude, while the single photon character of the emission is maintained. Hot spots between diamond and gold nanoparticles provide an efficient near-field coupling, despite the mismatch in size and shape. Our approach provides hybrid systems as important building blocks for novel nanophotonic light sources in advanced plasmonic devices stable even at room temperature.
Nature · 378 Zitationen · DOI
Laser & Photonics Review · 335 Zitationen · DOI
Abstract Glass microsphere resonators that support optical resonances known as whispering‐gallery modes are unique tools for studying and exploiting optical effects under extremely well controlled conditions. In this paper, a review focusing mostly on glass microsphere resonators is presented. First, a brief historical background is given in which we see how the state‐of‐the‐art has grown from novel optical resonators to the ultrahigh Q cavities used in cutting‐edge experiments. After the basic properties of microsphere resonators are outlined we will discuss some of the recent experiments involving microsphere resonators, although some discussion involving polymeric microspheres is also included. The use of doped and undoped microspheres in optical signal processing, optical sensing and quantum optics is highlighted. Finally, there is a brief review of recent optomechanical experiments that use microspheres.
Physical Review Letters · 311 Zitationen · DOI
We present experiments where a single subwavelength scatterer is used to examine and control the backscattering induced coupling between counterpropagating high-Q modes of a microsphere resonator. Our measurements reveal the standing wave character of the resulting symmetric and antisymmetric eigenmodes, their unbalanced intensity distributions, and the coherent nature of their coupling. We discuss our findings and the underlying classical physics in the framework common to quantum optics and provide a particularly intuitive explanation of the central processes.
Nano Letters · 210 Zitationen · DOI
We propose and demonstrate a hybrid cavity system in which metal nanoparticles are evanescently coupled to a dielectric photonic crystal cavity using a nanoassembly method. While the metal constituents lead to strongly localized fields, optical feedback is provided by the surrounding photonic crystal structure. The combined effect of plasmonic field enhancement and high quality factor (Q approximately 900) opens new routes for the control of light-matter interaction at the nanoscale.
Nano Letters · 183 Zitationen · DOI
In this Letter we report on the investigation of the upconversion emission of single NaYF(4) nanocrystals codoped with Yb(3+) and Er(3+). Single nanocrystals on a coverslip are excited with continuous wave laser light at 973 nm in a confocal setup and the upconversion fluorescence is analyzed with a spectrometer. With the help of an atomic force microscope the size of the nanocrystals is simultaneously determined. A strong size-dependence of the spectral properties of the upconversion signal of individual nanocrystals is observed. We attribute this to a differing number of available phonons in the individual crystals for multiphonon relaxation processes, depending on their size. We believe that this result provides a new strategy in the synthesis of upconversion nanoparticles with different spectral properties by changing only their size as it is well-known from the case of semiconductor quantum dots.
Optics Letters · 161 Zitationen · DOI
Aerostatic tuning of whispering gallery modes (WGMs) in a microbubble resonator is demonstrated. The optical modes are redshifted over hundreds of gigahertz (GHz) simply by increasing the air pressure (up to 6 bars) inside the microbubble. A description of the pressure tuning properties of the WGMs in microbubbles is given in terms of the corresponding elasto-optical equations of spherical shells and the results are compared to experimental data. Microbubbles as small as 74 μm are tested and the experimental results show excellent agreement with the theory. An estimation method is developed for calculating the wall thicknesses of the microbubbles from the diameters, which are measured via direct microscopy. A geometrical factor χ is defined and a linear relationship between the shift rate (GHz/bar) of the bubbles modes and χ is observed.
Physical Review Letters · 142 Zitationen · DOI
Narrow-band single photons represent an important resource for quantum memories due to their efficient interaction with atomic resonances. In this Letter, we report on the generation of photons with 3 MHz linewidth by cavity-enhanced parametric down-conversion and demonstrate direct proof of their single-photon character by detection of heralding idler photons. Compared to a Poissonian source, a suppression of higher-order photon numbers by nearly 2 orders of magnitude could be achieved. Moreover, the brightness of our source exceeds previous realizations by more than a factor of 100.
New Journal of Physics · 131 Zitationen · DOI
Single photons are fundamental elements for quantum information technologies such as quantum cryptography, quantum information storage and optical quantum computing. Colour centres in diamond have proven to be stable single-photon sources and thus essential components for reliable and integrated quantum information technology. A key requirement for such applications is a large photon flux and a high efficiency. Paying tribute to various attempts to maximize the single-photon flux, we show that collection efficiencies of photons from colour centres can be increased with a rather simple experimental setup. To do so, we spin-coated nanodiamonds containing single nitrogen-vacancy (N-V) colour centres on the flat surface of a ZrO2 solid immersion lens. We found stable single-photon count rates of up to 853 kcts s− 1 at saturation under continuous wave excitation while having access to more than 100 defect centres with count rates from 400 to 500 kcts s− 1. For a blinking defect centre, we found count rates up to 2.4 Mcts s− 1 for time intervals of several tens of seconds. It seems to be a general feature that very high rates are accompanied by blinking behaviour. The overall collection efficiency of our setup of up to 4.2% is the highest yet reported for N-V defect centres in diamond. Under pulsed excitation of a stable emitter of 10 MHz, 2.2% of all pulses caused a click on the detector adding to 221 kcts s− 1 thus, opening the way towards diamond-based on-demand single-photon sources for quantum applications.
Nano Letters · 131 Zitationen · DOI
In this letter, we present the on-demand coupling of single NV(-) defect centers in nanodiamonds to a polystyrene microspherical resonator. From an ensemble on a coverslip, we select single nanodiamonds containing a single defect proven by a pronounced antibunching dip. With the help of a scanning near-field probe, we can attach these nanodiamonds to a microsphere resonator one-by-one. A clearly modulated fluorescence spectrum demonstrates coupling of the single defect centers to high-Q whispering-gallery modes. Our experiments establish a toolbox to assemble complex systems consisting of single quantum emitters and (coupled) microresonators.
Physical Review Letters · 125 Zitationen · DOI
Spectral diffusion is the phenomenon of random jumps in the emission wavelength of narrow lines. This phenomenon is a major hurdle for applications of solid state quantum emitters like quantum dots, molecules, or diamond defect centers in an integrated quantum optical technology. Here, we provide further insight into the underlying processes of spectral diffusion of the zero-phonon line of single nitrogen vacancy centers in nano-size diamond by using a novel method based on photon correlation interferometry. The method works although the spectral diffusion rate is several orders of magnitude higher than the photon detection rate and thereby improves the time resolution of previous experiments with nano-size diamond by 6 orders of magnitude. We study the dependency of the spectral diffusion rate on the excitation power, temperature, and excitation wavelength under off-resonant excitation. Our results bring insight into the mechanism of spectral diffusion and suggest a strategy to increase the number of spectrally indistinguishable photons emitted by diamond nanocrystals.
Scientific Reports · 114 Zitationen · DOI
To fully integrate quantum optical technology, active quantum systems must be combined with resonant microstructures and optical interconnects harvesting and routing photons in three diemsnsions (3D) on one chip. We fabricate such combined structures for the first time by using two-photon laser lithography and a photoresist containing nanodiamonds including nitrogen vacancy-centers. As an example for possible functionality, single-photon generation, collection, and transport is successfully accomplished. The single photons are efficiently collected via resonators and routed in 3D through waveguides, all on one optical chip. Our one-step fabrication scheme is easy to implement, scalable and flexible. Thus, other complex assemblies of 3D quantum optical structures are feasible as well.
Optics Express · 114 Zitationen · DOI
We investigate the potential of microstructured optical fibers (MOFs) for highly sensitive absorption and fluorescence measurements by infiltrating a dye solution in the holey structure. Generally in a MOF only the evanescent part of the electromagnetic field penetrates into the sample material, providing a weak light-matter interaction. We compare such a MOF with a selectively filled hollow core photonic crystal fiber (HCPCF), in which most of the field energy propagates in the sample material. We show that dye concentrations down to 1x10(-10) M can be detected in a HCPCF using only nanoliter sample volumes. Our experiments proof that HCPCFs are well suited for demanding sensing applications, outperforming existing fiber tools that rely on evanescent sensing.
Physical Review Letters · 114 Zitationen · DOI
The field of the one-atom maser, or micromaser, shows strong variations in certain parameter regions usually identified as phase transitions. In this paper the time development of the field in the vicinity of those regions is investigated. Depending on the parameters, spontaneous jumps or slow transitions between two metastable field values can be observed. Hystersis behavior also occurs. The results are explained by means of a quantum Monte Carlo simulation of the maser field as well as a Fokker-Planck description used earlier in micromaser theory.
Physical Review Letters · 110 Zitationen · DOI
We report on the strong coupling of surface plasmon polaritons and molecular vibrations in an organic-inorganic plasmonic hybrid structure consisting of a ketone-based polymer deposited on top of a silver layer. Attenuated-total-reflection spectra of the hybrid reveal an anticrossing in the dispersion relation in the vicinity of the carbonyl stretch vibration of the polymer with an energy splitting of the upper and lower polariton branch up to 15 meV. The splitting is found to depend on the molecular layer thickness and saturates for micrometer-thick films. This new hybrid state holds a strong potential for application in chemistry and optoelectronics.
Optics Express · 109 Zitationen · DOI
We present a fiber-coupled diamond-based single photon system. Single nanodiamonds containing nitrogen vacancy defect centers are deposited on a tapered fiber of 273 nanometer in diameter providing a record-high number of 689,000 single photons per second from a defect center in a single-mode fiber. The system can be cooled to cryogenic temperatures and coupled evanescently to other nanophotonic structures, such as microresonators. The system is suitable for integrated quantum transmission experiments, two-photon interference, quantum-random-number generation and nano-magnetometry.
Applied Physics Letters · 101 Zitationen · DOI
We present photon correlation measurements performed on a device based on single InP quantum dots. The device consists of a 400 nm thick membrane containing a low density of quantum dots on a metal mirror. Measurements done under continuous excitation reveal a very pronounced antibunching dip while measurements done under pulsed excitation enable the generation of single photons on demand at the optimum wavelength for silicon-based single-photon detectors.
Optics Letters · 95 Zitationen · DOI
We demonstrate the controlled coupling of a single diamond nanocrystal to a planar photonic crystal double-heterostructure cavity. A dip-pen deposition method and subsequent manipulation with an atomic force microscope was used to precisely position the nanocrystal on top of the cavity. The optical properties of this combined system are investigated with regard to changes in the quality factor and resonance wavelength of the cavity mode as a function of the size and relative position of the diamond nanocrystal. These studies represent an important step toward well-controlled cavity-QED experiments with single-defect centers in diamond.
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Numerische Parameterquantifizierung und Optimierung von neuen Konzepten für die Quanteninformationsübertragung
other
Verbundprojekt: Photonische Quantencomputer (PhoQuant) - Teilvorhaben: Erzeugung nicht-Gaußscher Quantenzustände für Photonisches Quantencomputing
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Verbundprojekt: Photonische Quantencomputer (PhoQuant) - Teilvorhaben: Erzeugung nicht-Gaußscher Quantenzustände für Photonisches Quantencomputing
university
Verbundprojekt: Photonische Quantencomputer (PhoQuant) - Teilvorhaben: Erzeugung nicht-Gaußscher Quantenzustände für Photonisches Quantencomputing
university
SFB 951/3: Plasmonische Tunnelkontakte zur Erzeugung und Detektion von Infrarot-Photonen (TP B18)
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Active Plasmonic Nano-Antennas for Generating, Detecting, and Converting Quantum Light (ActiPlAnt)
university
SFB 951/3: Plasmonische Tunnelkontakte zur Erzeugung und Detektion von Infrarot-Photonen (TP B18)
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Verbundprojekt: Photonische Quantencomputer (PhoQuant) - Teilvorhaben: Erzeugung nicht-Gaußscher Quantenzustände für Photonisches Quantencomputing
company
Technologien und Demonstratoren für Quantenrepeater, TD.QR, Teilprojekt: 3-Knoten-Verschränkung von Quanten- speichern über eine 52km Telekomfaserverbindung
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Technologien und Demonstratoren für Quantenrepeater, TD.QR, Teilprojekt: 3-Knoten-Verschränkung von Quanten- speichern über eine 52km Telekomfaserverbindung
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FOR 1493/2: Integrated Quantum Optics and Nanophotonics with Defect Centers in Nanodiamonds
university
Verbundprojekt: Photonische Quantencomputer (PhoQuant) - Teilvorhaben: Erzeugung nicht-Gaußscher Quantenzustände für Photonisches Quantencomputing
company
QUIN: Quanten-OCT keramischer und polymerer Werkstoffe mit verschränkten Photonen im mittleren Infrarot
company
Verbundprojekt: Photonische Quantencomputer (PhoQuant) - Teilvorhaben: Erzeugung nicht-Gaußscher Quantenzustände für Photonisches Quantencomputing
company
Photonische Nano-Filme mit umfassender optischer Funktionalität
university
Photonische Nano-Filme mit umfassender optischer Funktionalität
university
QUIN: Quanten-OCT keramischer und polymerer Werkstoffe mit verschränkten Photonen im mittleren Infrarot
company
Verbundprojekt: Photonische Quantencomputer (PhoQuant) - Teilvorhaben: Erzeugung nicht-Gaußscher Quantenzustände für Photonisches Quantencomputing
company
SFB 951/3: Plasmonische Tunnelkontakte zur Erzeugung und Detektion von Infrarot-Photonen (TP B18)
university
Technologien und Demonstratoren für Quantenrepeater, TD.QR, Teilprojekt: 3-Knoten-Verschränkung von Quanten- speichern über eine 52km Telekomfaserverbindung
university
Verbundprojekt: Photonische Quantencomputer (PhoQuant) - Teilvorhaben: Erzeugung nicht-Gaußscher Quantenzustände für Photonisches Quantencomputing
company
Technologien und Demonstratoren für Quantenrepeater, TD.QR, Teilprojekt: 3-Knoten-Verschränkung von Quanten- speichern über eine 52km Telekomfaserverbindung
university
Realisierung höchsteffizienter Einzelphotonquellen mittels nanophotonischer Elemente und Nanomanipulationstechnologien
university
Verbundprojekt: Photonische Quantencomputer (PhoQuant) - Teilvorhaben: Erzeugung nicht-Gaußscher Quantenzustände für Photonisches Quantencomputing
university
Technologien und Demonstratoren für Quantenrepeater, TD.QR, Teilprojekt: 3-Knoten-Verschränkung von Quanten- speichern über eine 52km Telekomfaserverbindung
university
SFB 951/3: Plasmonische Tunnelkontakte zur Erzeugung und Detektion von Infrarot-Photonen (TP B18)
university
Technologien und Demonstratoren für Quantenrepeater, TD.QR, Teilprojekt: 3-Knoten-Verschränkung von Quanten- speichern über eine 52km Telekomfaserverbindung
university
Verbundprojekt: Photonische Quantencomputer (PhoQuant) - Teilvorhaben: Erzeugung nicht-Gaußscher Quantenzustände für Photonisches Quantencomputing
university
Stammdaten
Identität, Organisation und Kontakt aus HU-FIS.
- Name
- Prof. Dr. rer. nat. Oliver Benson
- Titel
- Prof. Dr. rer. nat.
- Fakultät
- Mathematisch-Naturwissenschaftliche Fakultät
- Institut
- Institut für Physik
- Arbeitsgruppe
- Experimentelle Physik (Nanooptik)
- Telefon
- +49 30 2093-82300
- HU-FIS-Profil
- Quelle ↗
- Zuletzt gescrapt
- 26.4.2026, 01:02:35